Why the Seller’s Property Tax Bill May Triple After You Buy
When a Florida home sells, it is reassessed at full market value the following January 1. That is why the seller’s tax bill is a poor predictor of yours, and why Save Our Homes and portability matter.
A buyer looks at a $2 million home in Naples. The listing shows annual property taxes of $8,200. The numbers work. The offer goes in.
After closing, the projected bill comes back near $25,000.
Nothing was concealed and nobody lied. The mistake was treating the seller’s tax history as the buyer’s forecast. Those are two different numbers, and in Florida they are frequently not close.
The Seller’s Protection Does Not Convey
Save Our Homes caps annual increases in the assessed value of qualifying homestead property at the lower of three percent or the applicable change in the Consumer Price Index. It is a powerful protection, and it compounds. After fifteen or twenty years of ownership, a seller’s assessed value can sit hundreds of thousands of dollars below what the home would actually fetch on the open market.
Florida has a name for that open-market figure: just value. It is the standard the state Constitution requires assessments to be based on, and Florida courts have long treated it as meaning fair market value. The phrase is worth recognizing, because it is the one printed on the county property appraiser’s notice — not “market value.”
That accumulated gap belongs to the seller, not to the house. When ownership changes, homestead property is generally reassessed at just value the following January 1. The exemptions and the Save Our Homes history do not pass with the deed. Improvements may also be assessed at just value.
One distinction gets lost regularly: the cap restricts assessed value, not the total tax bill. Millage rates and non-ad valorem assessments move independently. A property can be under the cap and still see its bill rise.
Portability May Soften the Reset, But It Comes From the Buyer
A buyer leaving another Florida homestead may be able to transfer all or part of their own Save Our Homes assessment difference to the new property. Portability can reduce the new home’s assessed value by as much as $500,000.
Three things about it are routinely misunderstood:
It is never inherited from the seller. The benefit travels with the buyer’s prior homestead. The seller’s accumulated difference simply disappears.
It is not automatic. The buyer must generally establish the new homestead within three years of January 1 of the year the prior homestead was abandoned — which is not the same as three years from closing, and the difference has cost people the benefit entirely. Application for homestead and portability is ordinarily due by March 1.
The amount is not predictable from the outside. Subject to the cap, the full difference may transfer to a home of equal or greater value; downsizing generally produces a proportional benefit rather than the whole amount. Joint ownership, divorce, and co-owners establishing separate homesteads all change the arithmetic. An agent should never promise a figure.
Second Homes and Investment Property Reset Too
Buyers sometimes assume the reassessment problem is a homestead problem. It is not confined to homestead.
Non-homestead residential property does not receive the Save Our Homes cap at all. Certain non-homestead residential assessments carry a ten percent cap for non-school levies, but a qualifying change of ownership or control resets the assessment to just value the following January 1. For the Southwest Florida second-home and rental market, that is the common case, not the exception.
The Closing Statement Will Not Solve the Forecast
Tax prorations at closing allocate the current year’s taxes between buyer and seller. They are an accounting exercise for a bill that already exists. They say nothing about what the buyer will owe once the property is reassessed.
The sequence catches people out. The old figure appears on the settlement statement, the buyer closes comfortable with it, and the reassessed bill arrives months later. Where taxes are escrowed, the lender raises the monthly payment to fund the higher bill and often to make up an escrow shortage at the same time. A buyer who budgeted from the listing can face a payment increase of several hundred dollars a month without any change to the loan.
The Contract Price Does Not Dictate Just Value
A recurring proposal: reduce the stated real estate price and assign a large amount to furniture, on the theory that a lower price produces a lower assessment.
A legitimate allocation can matter. Where sale proceeds are used in valuation, Florida law excludes amounts actually attributable to household furnishings or other personal property. But the parties’ label does not bind the property appraiser.
The appraiser weighs statutory factors — arm’s-length cash value, location, size, condition, cost, income, and net proceeds of sale — and may rely on comparable sales. An inflated furniture allocation does not guarantee a lower assessment, and it can create problems elsewhere: a lender questioning the appraisal, a title insurer questioning the consideration, and a documentary stamp tax position that has to be defensible if examined.
The Listing Rules Are Changing
Florida law already requires that residential buyers receive a warning not to rely on the seller’s current taxes.
Beginning February 1, 2027, public-facing residential listing platforms must generally display an estimated ad valorem tax calculated without the current owner’s protected assessment, or direct consumers to the county property appraiser instead. Printed listing materials may not include the current owner’s ad valorem taxes.
That is a genuine improvement, and it is worth preparing for now rather than in January 2027. It is also not a guarantee. The estimate may exclude non-ad valorem assessments, and it cannot know a particular buyer’s exemptions, portability benefit, or future millage rates.
What to Say Instead
The safer explanation takes about fifteen seconds:
“The seller paid approximately $8,200. The property will generally be reassessed after purchase, so your bill will be different. Use the county estimator, and confirm any homestead or portability benefit with the property appraiser.”
That sentence is accurate, it is not a prediction, and it moves the buyer toward the two sources that can actually answer the question.
The seller’s tax bill is history. The buyer’s tax bill requires a buyer-specific forecast.
Frequently Asked Questions
What does “just value” mean in Florida?
Just value is the term the Florida Constitution uses for the standard of assessment, and Florida courts have treated it as fair market value — what the property would sell for in an arm’s-length transaction on the open market. Florida Statutes section 193.011 lists the eight factors the property appraiser must weigh in arriving at it, one of which requires consideration of the net proceeds of a sale, so the assessed just value often lands somewhat below the gross price a buyer actually paid. It is also measured as of January 1, not as of the closing date.
Do I inherit the seller’s low property taxes when I buy their house?
No. The seller’s homestead exemption and accumulated Save Our Homes benefit do not transfer with the deed. Homestead property is generally reassessed at just value on January 1 of the year after ownership changes.
What is portability and how much can it save?
Portability lets a buyer transfer up to $500,000 of their own Save Our Homes assessment difference from a prior Florida homestead to a new one. It comes from the buyer’s previous property, never from the seller, and it must be applied for.
How long do I have to use portability?
Generally the new homestead must be established within three years of January 1 of the year the prior homestead was abandoned. That is measured from the abandonment year, not from your closing date, and the distinction has cost buyers the benefit.
Does the ten percent cap protect my second home or rental?
Certain non-homestead residential property has a ten percent cap for non-school levies, but a qualifying change of ownership or control resets the assessment to just value the following January 1. Buying the property is the event that resets it.
Can we lower the assessment by allocating part of the price to furniture?
Florida law does exclude amounts genuinely attributable to personal property when sale proceeds are used in valuation, but the parties’ allocation does not bind the property appraiser. An inflated furniture figure is unlikely to reduce the assessment and can create lender, title and documentary stamp tax problems.
Before You Write the Offer
If you are buying, selling or listing in Southwest Florida and the tax number in the listing is doing real work in someone’s budget, it is worth a conversation before the contract is signed rather than after the bill arrives. We handle residential and commercial contracts and closings across Lee, Collier, Charlotte and Sarasota counties, from offices in Cape Coral, Naples and Sanibel.
This article provides general information about Florida law as of the date of publication. It is not legal advice and is not a substitute for advice from counsel about a specific transaction. Examples are composites with identifying details changed.
